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Results tagged with power-supply
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user 194626
An electronic device that supplies electrical energy to a load. It can be AC or DC input. Typically DC output.
0
votes
3
answers
186
views
How can I implement selectable VCC and ground
I want to make a retro computer around a 6809E and a CPLD. It occurs to me that the physical layout/design of this board would be nearly identical for all the 40 pin, 8 bit CPUs except for power and g …
14
votes
5
answers
1k
views
Why are there extra resistors in this op-amp circuit?
I am trying to replace the LM4250 with a newer op-amp. My take on this circuit is that the op-amp is configured as a unity gain voltage follower that drives a push-pull amplifier to provide the voltag …
- 47.1k
1
vote
2
answers
828
views
Replacing a missing/obsolete AC power supply with DC power supply
I am trying to replace a missing power supply for a TRS-80 model 1. The original power supply provided unregulated DC ~20V, unregulated AC ~10V and ground. Internally the computer connects the AC to a …
- 13.1k